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| author | Evan Cheng <evan.cheng@apple.com> | 2008-10-24 02:05:00 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2008-10-24 02:05:00 +0000 |
| commit | 06587497dc1c39516f24784a2ac1d9323faae0a5 (patch) | |
| tree | 4755a8c6388a501143365e291d7815da8dfdbe73 /test/CodeGen/X86/pre-split1.ll | |
| parent | c9f3cc3bdaf1ec134dec1f718e7f2e735b34b17b (diff) | |
| download | external_llvm-06587497dc1c39516f24784a2ac1d9323faae0a5.zip external_llvm-06587497dc1c39516f24784a2ac1d9323faae0a5.tar.gz external_llvm-06587497dc1c39516f24784a2ac1d9323faae0a5.tar.bz2 | |
Avoid splitting an interval multiple times; avoid splitting re-materializable val# (for now).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58068 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/pre-split1.ll')
| -rw-r--r-- | test/CodeGen/X86/pre-split1.ll | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/test/CodeGen/X86/pre-split1.ll b/test/CodeGen/X86/pre-split1.ll new file mode 100644 index 0000000..f99ac89 --- /dev/null +++ b/test/CodeGen/X86/pre-split1.ll @@ -0,0 +1,23 @@ +; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 -pre-alloc-split -stats |& \ +; RUN: grep {pre-alloc-split} | grep {Number of intervals split} | grep 1 + +define void @test(double* %P, i32 %cond) nounwind { +entry: + %0 = load double* %P, align 8 ; <double> [#uses=1] + %1 = add double %0, 4.000000e+00 ; <double> [#uses=2] + %2 = icmp eq i32 %cond, 0 ; <i1> [#uses=1] + br i1 %2, label %bb1, label %bb + +bb: ; preds = %entry + %3 = add double %1, 4.000000e+00 ; <double> [#uses=1] + br label %bb1 + +bb1: ; preds = %bb, %entry + %A.0 = phi double [ %3, %bb ], [ %1, %entry ] ; <double> [#uses=1] + %4 = mul double %A.0, 4.000000e+00 ; <double> [#uses=1] + %5 = tail call i32 (...)* @bar() nounwind ; <i32> [#uses=0] + store double %4, double* %P, align 8 + ret void +} + +declare i32 @bar(...) |